# Riichi Mahjong Hand Calculator — Japanese Reach Mahjong Scoring > Japanese Reach Mahjong scoring calculator with hand detection and helper tools. (iPhone/iPad app by Heart of the Cards.) - Source: https://appshunter.io/ios/app/riichi-mahjong-hand-calculator/id1160349726 (this page in markdown: same URL + `.md`) - Developer: [Heart of the Cards](https://appshunter.io/developer/980572191) - Category: Games, Education, Board, Card - Price: Free - Rating: 3.90/5 from 8 App Store ratings · 6 written reviews indexed - Age rating: 4+ - Requires: iOS 12.0 · 17 MB - Languages: American English - Released: 2017-10-03 - Data updated: 2026-06-25 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/riichi-mahjong-hand-calculator/id1160349726/reviews.md ## What is Riichi Mahjong Hand Calculator? This app lets you quickly enter Riichi Mahjong hands for calculation. Choose which player you are, how you won, bonus rounds, dora, and so on, and it gives you back your score right away! Detects special and unusual hands, with standardized terminology, using standard Japanese scoring, just like in your favorite online Mahjong games! Undo functionality for mistakes, screenshot ability, as well as a "What would you Cut" (nani kiru) screenshot for incomplete hands so you can post it online for your friends. ## Key features - Quick hand entry for scoring - Detects special and unusual hands - Standard Japanese scoring - Undo functionality - Screenshot capability - Nani Kiru (What would you Cut) feature ## Recent user reviews (6 of 6) All indexed reviews: https://appshunter.io/ios/app/riichi-mahjong-hand-calculator/id1160349726/reviews.md ### 1/5 — Unable to open settings, littered with ads. *2023-01-03* Dev/Devs threw as many ads into the space as they could. Normally, ads wouldn’t be a huge issue for a free app if I could pay to disable them, or they at least relegate themselves to a small area. I assume there is an option to pay to remove ads in the settings screen however, it appears settings for this app is broken (or at least, doesn’t function on iPhone 12 Pro Max). If the app were well built or polished I might be able to recommend it, but as it stands it’s broken, littered with ads that cannot even be removed via a donation, and rather garishly designed. ### 2/5 — Nearly useful *2021-08-25* Considering the amount of work that has gone into this, you get the total score but no details of the calculations. Without the details this is not much use to me. ### 4/5 — Pretty good app *2019-06-08* I use this app to calculate and works pretty well. There doesn’t seem to be a way to calculate for double riichi though. ### 4/5 — Bug Report *2019-03-15* 19m19p19s1234567z 7z The app quits unexpectedly. 19m19p19s1234566z 7z The app tells me I’m not winning. ### 3/5 — Crashes *2018-12-22* When calculating certain super rare hands such as 13 orphans, the app crashes and forced me to use web browser options. Also, removing some tiles is surprisingly annoying due to the single undo method of fix g changes. ### 5/5 — Must Have *2018-06-04* Incredible Calculator for beginners to get the feel for what a hand is worth, or for pros to check their math. Great work! ## Frequently asked questions about Riichi Mahjong Hand Calculator ### How do I calculate scores with Riichi Mahjong Hand Calculator? You can quickly input your hand details, including how you won, bonus rounds, and dora. The app then provides your score immediately, using standard Japanese scoring rules. ### Does Riichi Mahjong Hand Calculator detect special hands? Yes, the app is designed to detect special and unusual hands, providing standardized terminology and accurate scoring just like in online Mahjong games. ### Can I correct mistakes made while entering a hand in Riichi Mahjong Hand Calculator? Absolutely. The app includes an undo functionality, allowing you to easily correct any mistakes you make during hand entry. ### What is the 'What would you Cut' feature in Riichi Mahjong Hand Calculator? This feature provides a screenshot for incomplete hands, often referred to as 'nani kiru,' which you can share with friends online for advice on which tile to discard. ### Is Riichi Mahjong Hand Calculator available on Android devices? Based on the provided data, the app is supported on iPhone and iPod devices. Information regarding Android compatibility is not available. ### How often is Riichi Mahjong Hand Calculator updated? The app was last updated on January 19, 2022, with version 1.03. Further update frequency details are not specified. ### What is the age rating for Riichi Mahjong Hand Calculator? The app has an age rating of 4+, making it suitable for a wide range of users. ### Does Riichi Mahjong Hand Calculator have ads? No, the application does not contain advertisements. It is a free app without any ad interruptions. ## Version history (last 4 releases) ### 1.03 — 2022-01-19 Back end API Updates. Minor bug fixes ### 1.02 — 2021-05-13 Minor Bug Fixes, Updates to APIs ### 1.01 — 2019-05-17 1.01 - Various bug and crash fixes ### 1.0 — 2017-10-03 No release notes. ## Apps similar to Riichi Mahjong Hand Calculator | App | Rating | Price | Category | | --- | --- | --- | --- | | [Riichi Mahjong](https://appshunter.io/ios/app/riichi-mahjong/id1503415829) | 4.8 (359) | Free | Games | | [HK Mahjong](https://appshunter.io/ios/app/hk-mahjong/id1574135089) | 1.0 (1) | Free | Games | | [Hong Kong Style Mahjong](https://appshunter.io/ios/app/hong-kong-style-mahjong/id916388468) | 2.8 (13) | Free | Games | | [Mahjong Soul](https://appshunter.io/ios/app/mahjong-soul/id1464872167) | 4.9 (10,385) | Free | Games | | [Mahjong Calc Trainer](https://appshunter.io/ios/app/mahjong-calc-trainer/id600841067) | 5.0 (3) | Free | Games | | [Koikoi Lite](https://appshunter.io/ios/app/koikoi-lite/id619551174) | 3.7 (7) | Free | Games | ## More apps by Heart of the Cards - [WeiB Schwarz Translator](https://appshunter.io/ios/app/weib-schwarz-translator/id980572192) - [Riichi Mahjong Quiz](https://appshunter.io/ios/app/riichi-mahjong-quiz/id1374522349) All apps by Heart of the Cards: https://appshunter.io/developer/980572191 ## Related topics [riichi mahjong hand calculator](https://appshunter.io/ios/topics/riichi-mahjong-hand-calculator) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-25.*